Wireless tie insulator



v Nov. 25 1924'- 1,516,884 H. A. FREDERICK WIRELESS TIE INSULATOR FiledMarch 151.- 1921 4 HAEEdaai Gk.

fjwuenfoz Patented Nov. 25, 1924.

UNITED STATES HARRY A. FREDERICK, O'F CHIGORA, PENNEYLVANIA.

WIRELESS TIE INSULATOR.

Application filed March 31, 1921. Serial No. 457,197

To all 1 11, 2,01. may concern:

Be it known that I, HARRY A. FREDERIGK, a citizen of the United States,residing at Chicora, in the county of Butler and State of Pennsylvania,have invented certain new and useful Improvements in Wireless TieInsulators, of which the following is a specilication.

This invention relates to improvements in insulators for supportingcurrent conveying cables or wires, in a firm and secure manner, withoutliability of accidental displacement, and doing away with the ordinarytie wire used for such purposes.

A primary object of the invention is the provision of an insulator ofthe above described character, simulating in appearance the ordinaryinsulator, and employing a non-frangible device for locking, and tyingthe cable or current wire to the insulator.

A further object of the invention is the provision of an insulator whichis simple in construction, practical, and which utilizes the naturaltension of a suspended wire in locking the same securely to saidinsulater.

Other objects and advantages will be apparent during the course of thefollowing detailed description.

In the accompanying drawing forming a part of this specification, and inwhich similar reference characters designate corresponding partsthroughout the several news,

Figure 1 is a front elevation of the improved insulator.

F 2 is a plan view of the improved insulator.

Fig. 3 is a cross sectional view of the improved insulator, showingdetails of construction thereof, and taken on the line 3-3 of Fig. 1.

In the drawings, wherein for the purpose of illustration is shown thepreferred embodiment of my invention, the letter A. designates thewireless tie insulator, which is niounted upon the ordinary wooden pinB, in usual construction. The insulator A, comprises the body portion B;the brackets formed integral with the body portion 3, and thenon-frangible insert D. The various parts of the insulator A, areadapted to support a cable, or conducting wire E.

The insulator A, is preferably formed of porcelain, glass, or some otherinsulating material, which due to the quality of insulation required, isordinarily of frangible material. The body portion B, simulates inappearance somewhat the ordinary tie insulator, and comprises the dome10, and the base 11. The base 11, is provided with the ordinary grooves12, formed by flanges 13,

10, is rounded, and preferably provided with a rectangular recess 17extending transversely through the body portion, and for the freereception of the insert D. Substantially U-shaped brackets 20 and 21 areprovided upon the body portion B, and extending outwardly from thearcuate side 23 of the body portion, in a diverging direction. Thebrackets 20 and 21, are in transverse alignment, and the openings 24therein open from the top of the dome 10, and are likewise in alignmentfor the reception of a wire or cable E. The brackets 20 and 21, are ofthe same material as the body port-ion B, and preferably integraltherewith. Seats 25 are provided, and which extend downwardly inconverging relation to each other for apurpose to be subsequently setforth. Since the brackets 20 and 21 extend atan acute anglewith respectto each other, that is, diverge slightly, it is preferred that the innerface 26 of the brackets 20 and 21 be arcuated to engage the wire Ewithout any liability of rupture of said wire due to frictional contacttherewith.

The insert, or piece D as heretofore mentioned is of some non-frangiblematerial, such as aluminium, although the material of which the same isformed need not necessarily be restricted to aluminium. The insert D, isof rectangular formation, and is provided for reception within therecess 17, the same being held therein by frictional engagement with thesides of said recess. In the preferred arrangement, the insert D extendsentirely througl'i the dome 10, however, the same may be disposed in aclosed pocket in the dome. A. hook 530 is provided integral upon theface 31 of the insert D, and said book provides a groove 32, inalignment with the top of the seats 25 of the brackets 20 and 21, and inthe preli1ninary placing of a wire cable E on the in sulator A, saidwire E is seated in the openings 2-l of the brackets 20 and 2]., andmanually placed in the groove 32 formed by the hook 30. A second hook 81, is placed immediately below the hook 30, to provide a groove 35,extending below the seats 25 formed in the brackets 20 and 21. In fact,a plurality of hooks may be formed below the hook 30, and in appearancealtogether similar to that of hook 3-4, for the same purpose for whichthe hook 34 is provided.

In placing the cable E to be supported in locked engagement with theinsulator A, said cable E is first positioned downwardly in the openingsor recesses 241- formed in the brackets 20 and 21, until they assume anatu 'al position upon the seats 25. As heretofore mentioned, the nextoperation will be that of manually inserting the wire cable E in thegroove formed by the hook 30. In this position, the horizontalcontinuity of the wire E is unbroken, as can readily be determined fromthe dot and dash lines shown in Figure 1 of the drawing. It is preferredhowever, in the majority of instances, that the wire E be clamped underits own tension to be securely locked to the insulator A. This operationis e'li'ect-ive, by the use of a small prying tool, such as a crow bar,which is inserted intermediate the wire E, and the hook 34C, and bymeans of leverage secured by said suitable tool, the wire E is crimped,until the same sea-ts upon the arcuate surface of the seats 25, and saidcrimped portion of the wire E snaps into the groove 35 formed by thehook 34-. In this position, there is little liability of accidentaldisplacement of the wire E from the insulator A.

From the foregoing, it can be seen that an insulator has been providedin which a non-"frangible, and preferably metallic in sert is used, thesame being insulated from the wire E by means of the insulation upon thewire, and which is insulated in the dome 10, and cannot result in anyloss of current in said cables. This insert I), is of great importancein that the same insures a very durable insulator having its hooks 80and 84- of non-frangible material. There is thus little liability of anyof the parts of the insulator becoming broken, or out 0t order.

Various changes in the shape, size, and arrangement of parts may be madeto the form of the invention herein shown and de scribed. withoutdeparting from the spirit of the invention or the scope of the claims.

I claim:

1. An insulator, comprising in rombinzb tion a body portion having arecess transversely theret-ln'ough, substantially Ushaped bracketsformed integral upon said body portion, in transverse alignment, and anon-frangible insert mounted in said recess and arranged intermediatesaid brackets to: locking a wire supported by said brackets.

2. In an insulator, the combinatioi'i with a wire, of a body portionhaving a recess therein, substantially U-shaped brackets fi'n'uiedintegral upon said body portion for su iiporting said wire, and aninsert mounted in said recess having a hook thereon, said wire adaptedto be tensioned under said hook for locking it in supported position onsaid brackets.

3. An insulator, comprising in combination a body portion of frangibleinsulation, and having a transverse recess therein, substantiallyU-shaped brackets formed integral upon said body portion and intransverse alignment upon opposite sides of said recess, said bracketshaving their openings extending upwardly, and provided with downwardlyconverging wire receiving seats, and a non-trai'igible insert for saidbody portion recess, having a plurality of hooks thereon for adjustablylooking a wire in supported position in the seats of said ln'ackets.

HARRY A. FREDERICK.

